608655889 has 2 divisors, whose sum is σ = 608655890. Its totient is φ = 608655888.

The previous prime is 608655851. The next prime is 608655967. The reversal of 608655889 is 988556806.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465135489 + 143520400 = 21567^2 + 11980^2 .

It is a cyclic number.

It is not a de Polignac number, because 608655889 - 2¹⁵ = 608623121 is a prime.

It is not a weakly prime, because it can be changed into another prime (608605889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304327944 + 304327945.

It is an arithmetic number, because the mean of its divisors is an integer number (304327945).

Almost surely, 2^608655889 is an apocalyptic number.

It is an amenable number.

608655889 is a deficient number, since it is larger than the sum of its proper divisors (1).

608655889 is an equidigital number, since it uses as much as digits as its factorization.

608655889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The square root of 608655889 is about 24670.9523326523. The cubic root of 608655889 is about 847.4692378679.

The spelling of 608655889 in words is "six hundred eight million, six hundred fifty-five thousand, eight hundred eighty-nine".